[[!meta title="Obnam - backup software"]]

[[!img kitten.jpg class="float_right"
   link="https://commons.wikimedia.org/wiki/File:A_focused_kitten_(Pixabay).jpg"
   alt="Kitten being adorable. By Ty Swartz, CC0, via Wikimedia Commons"]]

Obnam is starting over from scratch. See [blog
post](https://blog.liw.fi/posts/2020/10/16/obnam2_-_a_new_backup_system/).
It is currently not ready to be used, but do check in later. See
[[roadmap]] for current plans.

This web site used to be about Obnam1, the original version that was
retired in 2017. All that content has been dropped now. 

Obnam2 acceptance criteria are documented using [Subplot][], and are
on [docs.obnam.org](https://doc.obnam.org/).

**25-word summary of the new architecture:** client splits live data
into chunks, then compresses and encrypts them, and uploads new ones
to smart server via HTTP; server never sees cleartext.

[Subplot]: https://subplot.liw.fi/

Links
-----

* [Source code (gitlab.com)](https://gitlab.com/larswirzenius/obnam) ([mirror](http://git.liw.fi/obnam2))
* [[Road map|roadmap]] for developing Obnam.
* [Obnam blog posts](https://blog.liw.fi/tag/obnam/)
* Other backup software:
  * [Borg](https://www.borgbackup.org/)
  * [restic](https://restic.net/)
* [Cache Directory Tagging Standard](http://www.bford.info/cachedir/)